County annual report · FIPS 08059
2024 Jefferson County, CO Power Outage Report
In 2024, customers in Jefferson County, CO went without power for an average of 11.7 hours, a total of 3.3M customer-hours (Colorado average 4.7 hours). That ranks 9th worst of 52 Colorado counties and 805th of 2,990 nationally.
Compared with CO, the US and 2023
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Jefferson County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 6, 2024 12:30 | April 18, 2024 03:30 | 11d 15h | 73,150 | 2.0M |
| 2 | March 23, 2024 15:15 | March 26, 2024 06:30 | 2d 15h | 42,214 | 31K |
| 3 | February 10, 2024 06:00 | February 10, 2024 18:45 | 12h 45m | 25,960 | 6,792 |
| 4 | March 13, 2024 14:00 | March 17, 2024 11:15 | 3d 21h | 24,922 | 276K |
| 5 | January 5, 2024 11:15 | January 5, 2024 11:45 | 30m | 13,912 | 3,479 |
| 6 | May 6, 2024 09:30 | May 9, 2024 03:45 | 2d 18h | 12,707 | 52K |
| 7 | February 3, 2024 20:00 | February 5, 2024 03:15 | 1d 7h | 11,747 | 34K |
| 8 | November 19, 2024 15:30 | November 21, 2024 03:30 | 1d 12h | 7,890 | 9,605 |
| 9 | January 17, 2024 15:30 | January 18, 2024 10:45 | 19h 15m | 7,493 | 2,279 |
| 10 | November 8, 2024 16:45 | November 12, 2024 06:00 | 3d 13h | 6,543 | 61K |
Outage episodes by size in 2024: 246 reached 100+ customers, 83 reached 1,000+ customers, 7 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Jefferson County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Public Service Co of Colorado | 2024 | 5.9 hrs | 1.68 | 2.6 hrs | 1.36 |
| CORE Electric Cooperative | 2024 | 3.5 hrs | 0.93 | 74 min | 0.75 |
| United Power, Inc | 2024 | 77 min | 1.20 | 77 min | 1.20 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Colorado's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 278,207 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, CO annual power outage report, 2024, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2024/colorado/jefferson-county